12204215409 has 24 divisors (see below), whose sum is σ = 16888285920. Its totient is φ = 7837808832.

The previous prime is 12204215399. The next prime is 12204215437. The reversal of 12204215409 is 90451240221.

It is not a de Polignac number, because 12204215409 - 2¹³ = 12204207217 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12204215209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 389862 + ... + 420000.

It is an arithmetic number, because the mean of its divisors is an integer number (703678580).

Almost surely, 2^12204215409 is an apocalyptic number.

It is an amenable number.

12204215409 is a deficient number, since it is larger than the sum of its proper divisors (4684070511).

12204215409 is an equidigital number, since it uses as much as digits as its factorization.

12204215409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30301 (or 30258 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 12204215409 in words is "twelve billion, two hundred four million, two hundred fifteen thousand, four hundred nine".